<template>
  <div class="login_container">
    <div class="login_box">
      <!-- 头像区域 -->
      <div class="avatr_box">
        <img src="../assets/logo.png" alt="" />
      </div>
      <!-- 登录表单区域 -->
      <el-form
        ref="loginFormRef"
        :model="loginForm"
        :rules="loginFormRules"
        label-width="0px"
        class="login_form"
      >
        <!-- 用户名 -->
        <el-form-item label="" prop="username">
          <el-input v-model.trim="loginForm.username" prefix-icon="User" />
        </el-form-item>
        <!-- 密码 -->
        <el-form-item label="" prop="password">
          <el-input
            v-model.trim="loginForm.password"
            type="password"
            prefix-icon="Lock"
          />
        </el-form-item>
        <!-- 按钮区域 -->
        <el-form-item class="btns">
          <el-button type="primary" @click="login">登录</el-button>
          <el-button type="info" @click="resetLoginForm">重置</el-button>
        </el-form-item>
      </el-form>
    </div>
  </div>
</template>

<script setup>
import { reactive, ref } from "vue";
import API from "../plugins/axiosInstance";
import { useRouter, useRoute } from "vue-router";

const router = useRouter();
const route = useRoute();

const loginFormRules = {
  username: [
    // 验证用户名是否合法
    {
      required: true,
      message: "请输入用户名",
      trigger: "blur",
    },
    {
      min: 3,
      max: 10,
      message: "长度在 3 到 10 个字符之间",
      trigger: "blur",
    },
  ],
  password: [
    {
      required: true,
      message: "请输入密码",
      trigger: "blur",
    },
    {
      min: 5,
      max: 15,
      message: "长度在 5 到 15 个字符之间",
      trigger: "blur",
    },
  ],
};
const loginForm = reactive({
  username: "admin",
  password: "admin",
});
const loginFormRef = ref(null);

// 登录按钮
const login = () => {
  loginFormRef.value.validate((valid, fields) => {
    if (valid) {
      API.post("/login", {
        username: loginForm.username,
        password: loginForm.password,
      }).then((res) => {
        if (res.data.status !== 200) {
          ElMessage.error("登录失败");
          return;
        }
        ElMessage({
          message: "登录成功",
          type: "success",
        });
        window.sessionStorage.setItem("token", res.data.token);
        // router.replace({ path: "/home" });
        router.replace({ path: "/admin/index" });
      });
      // API({
      //   url: "/login",
      //   method: "post",
      //   data: {
      //     username: loginForm.username,
      //     password: loginForm.password,
      //   },
      // }).then((res) => {
      //   console.log(res.data);
      // });
    } else {
      console.log("error submit!", fields);
    }
  });
};
// 点击重置按钮，重置登录表单
const resetLoginForm = () => {
  loginFormRef.value.resetFields();
};
</script>

<style lang="less" scoped>
.login_container {
  background-color: #2b4b6b;
  height: 100%;
}
.login_box {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 450px;
  height: 300px;
  background-color: #fff;
  border-radius: 3px;
}
.avatr_box {
  position: absolute;
  left: 50%;
  transform: translate(-50%, -50%);
  height: 130px;
  width: 130px;
  border: 1px solid #eee;
  border-radius: 50%;
  padding: 10px;
  box-shadow: 0 0 10px #ddd;
  background-color: #fff;
  img {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background-color: #eee;
  }
}
.login_form {
  position: absolute;
  bottom: 0;
  width: 100%;
  padding: 0 20px;
  box-sizing: border-box;
}
.btns {
  // flex-end 无效
  display: flex;
  justify-content: flex-end;
}
</style>
